:root {
  color-scheme: light;
  --green: #0b5d43;
  --green-dark: #074632;
  --green-soft: #e7f4ef;
  --ink: #17211d;
  --muted: #607068;
  --border: #d5dfda;
  --surface: #ffffff;
  --background: #f4f7f5;
  --danger: #a32626;
  --shadow: 0 8px 24px rgba(15, 44, 33, .10);
}
* { box-sizing: border-box; }
html { background: var(--background); }
body { margin: 0; min-height: 100vh; min-height: 100dvh; font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--ink); background: var(--background); }
button, input, select { font: inherit; }
button, input, select { min-height: 46px; border-radius: 10px; }
button { cursor: pointer; border: 1px solid var(--border); background: var(--surface); font-weight: 750; padding: .7rem 1rem; }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid #52b788; outline-offset: 2px; }
button:disabled { opacity: .5; cursor: not-allowed; }
input, select { width: 100%; border: 1px solid #aab8b1; background: #fff; padding: .7rem .8rem; color: var(--ink); }
label { display: block; font-weight: 700; margin: .7rem 0 .35rem; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(1.25rem, 5vw, 1.75rem); margin-bottom: 0; }
h2 { font-size: 1.35rem; margin-bottom: .45rem; }
h3 { font-size: 1rem; }
[hidden] { display: none !important; }
.primary { color: #fff; background: var(--green); border-color: var(--green); }
.primary:hover { background: var(--green-dark); }
.secondary { background: #fff; color: var(--green-dark); border-color: #92aaa0; }
.ghost { background: transparent; border-color: transparent; color: var(--green-dark); }
.danger-outline { color: var(--danger); border-color: #d7a6a6; background: #fff7f7; }
.compact { min-height: 38px; padding: .4rem .7rem; font-size: .88rem; }
.full-width { width: 100%; margin-top: 1rem; }
.muted, .hint { color: var(--muted); }
.hint { font-size: .84rem; margin: .5rem 0 0; }
.error { color: var(--danger); min-height: 1.25em; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow); }
.centered-screen { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 1.25rem; }
.login-card { width: min(100%, 390px); padding: 1.5rem; }
.brand-mark { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 14px; color: #fff; background: var(--green); font-weight: 900; font-size: 1.6rem; margin-bottom: 1rem; }
.app-header { position: sticky; top: 0; z-index: 20; display: flex; justify-content: space-between; align-items: center; gap: 1rem; color: #fff; background: var(--green-dark); padding: calc(.75rem + env(safe-area-inset-top)) 1rem .75rem; box-shadow: 0 2px 12px rgba(0,0,0,.18); }
.eyebrow { display: block; font-size: .68rem; letter-spacing: .12em; opacity: .8; }
.user-controls { display: flex; align-items: center; gap: .6rem; }
.user-controls .secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,.55); }
#signed-in-user { font-size: .8rem; max-width: 100px; overflow: hidden; text-overflow: ellipsis; }
.content { width: min(100%, 1040px); margin: 0 auto; padding: 1rem 1rem calc(6.5rem + env(safe-area-inset-bottom)); }
.app-panel { animation: fade-in .15s ease-out; }
@keyframes fade-in { from { opacity: .25; transform: translateY(3px); } }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: .8rem; }
.step-chip, .count-chip { display: inline-block; padding: .25rem .55rem; border-radius: 999px; color: var(--green-dark); background: var(--green-soft); font-size: .75rem; font-weight: 800; }
.scan-grid, .manage-grid { display: grid; gap: .9rem; }
.scan-card { position: relative; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 1rem; }
.number-badge { position: absolute; right: .75rem; top: .65rem; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; color: #fff; background: var(--green); font-size: .8rem; font-weight: 900; }
.input-action { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .55rem; }
.scan-button { min-width: 76px; color: var(--green-dark); border-color: #77a795; background: var(--green-soft); }
.match-state { margin-top: .6rem; min-height: 1.25rem; color: var(--muted); font-size: .84rem; }
.match-state.ok { color: var(--green); font-weight: 750; }
.match-state.bad { color: var(--danger); font-weight: 750; }
.quick-adjust { margin-top: 1rem; padding: 1rem; }
.photo-evidence-card { margin-top: 1rem; padding: 1rem; }
.photo-evidence-grid { display: grid; grid-template-columns: minmax(120px, 220px) 1fr; gap: 1rem; align-items: start; }
#saved-photo-thumbnail { display: block; width: 100%; max-height: 220px; object-fit: contain; border-radius: 12px; border: 1px solid var(--border); background: #eef2f0; }
.photo-evidence-details { display: grid; gap: .65rem; }
.photo-evidence-details div { display: grid; gap: .15rem; }
.swatch-row { display: flex !important; grid-template-columns: 52px 1fr; align-items: center; gap: .7rem !important; }
.swatch-row div { display: grid; }
.swatch-row small { color: var(--muted); }
.color-swatch { display: block; width: 52px; height: 52px; border-radius: 10px; border: 1px solid #77837d; box-shadow: inset 0 0 0 2px rgba(255,255,255,.55); }
#current-quantity { font-size: 1.35rem; color: var(--green-dark); }
.quick-buttons { display: grid; grid-template-columns: repeat(4, 1fr); gap: .55rem; }
.search-controls { display: grid; grid-template-columns: minmax(0, 2fr) minmax(130px, .7fr) auto auto; align-items: end; gap: .6rem; margin-bottom: 1rem; }
.search-controls label { margin-top: 0; }
.checkbox { min-height: 46px; display: flex; align-items: center; gap: .45rem; white-space: nowrap; }
.checkbox input { width: 20px; min-height: 20px; }
.results { display: grid; gap: .7rem; }
.result-card { padding: 1rem; background: #fff; border: 1px solid var(--border); border-radius: 14px; }
.result-title { display: flex; justify-content: space-between; gap: .8rem; }
.result-code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-weight: 850; }
.stock-total { font-size: 1.2rem; font-weight: 900; color: var(--green-dark); white-space: nowrap; }
.location-list { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .65rem; }
.location-pill { border-radius: 8px; padding: .4rem .55rem; background: var(--green-soft); font-size: .82rem; }
.form-card { padding: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1.6fr; gap: .7rem; }
.form-card button { margin-top: 1rem; width: 100%; }
.history-row { display: grid; grid-template-columns: minmax(115px, .7fr) 1fr auto; gap: .7rem; align-items: center; padding: .75rem; background: #fff; border: 1px solid var(--border); border-radius: 12px; font-size: .86rem; }
.bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; display: grid; grid-template-columns: repeat(4, 1fr); padding: .4rem .5rem calc(.4rem + env(safe-area-inset-bottom)); background: rgba(255,255,255,.97); border-top: 1px solid var(--border); box-shadow: 0 -4px 18px rgba(0,0,0,.08); }
.nav-button { display: flex; flex-direction: column; align-items: center; gap: .1rem; min-height: 54px; padding: .35rem; border: 0; border-radius: 10px; font-size: .72rem; color: var(--muted); background: transparent; }
.nav-button span { font-size: 1.25rem; line-height: 1; }
.nav-button.active { color: var(--green-dark); background: var(--green-soft); }
dialog { width: min(96vw, 600px); border: 0; border-radius: 18px; padding: 1rem; box-shadow: 0 20px 70px rgba(0,0,0,.4); }
dialog::backdrop { background: rgba(0,0,0,.65); }
.dialog-heading { display: flex; justify-content: space-between; align-items: center; }
#scanner-region { min-height: 280px; overflow: hidden; border-radius: 12px; background: #111; }
#camera-reader { width: 100%; }
.file-scan { display: block; text-align: center; padding: .75rem; margin-top: .8rem; color: var(--green-dark); background: var(--green-soft); border-radius: 10px; cursor: pointer; }
.file-scan input { margin-top: .55rem; }
.toast { position: fixed; z-index: 60; left: 50%; bottom: calc(5.7rem + env(safe-area-inset-bottom)); transform: translateX(-50%); width: min(90vw, 520px); padding: .85rem 1rem; border-radius: 12px; color: #fff; background: #263b33; box-shadow: var(--shadow); text-align: center; font-weight: 700; }
.toast.error-toast { background: var(--danger); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (min-width: 760px) {
  .scan-grid { grid-template-columns: 1fr 1fr; }
  .quantity-card { grid-column: 1 / -1; }
  .manage-grid { grid-template-columns: 1fr 1fr; }
  #print-label { grid-column: 1 / -1; }
  .bottom-nav { left: 50%; width: min(100%, 700px); transform: translateX(-50%); border: 1px solid var(--border); border-bottom: 0; border-radius: 16px 16px 0 0; }
}
@media (max-width: 620px) {
  .app-header { align-items: flex-start; }
  #signed-in-user { display: none; }
  .search-controls { grid-template-columns: 1fr 1fr; }
  #inventory-search { grid-column: 1 / -1; }
  .quick-buttons { grid-template-columns: repeat(4, 1fr); }
  .quick-buttons button { padding: .65rem .2rem; }
  .history-row { grid-template-columns: 1fr auto; }
  .history-row .history-location { grid-column: 1 / -1; }
  .photo-evidence-grid { grid-template-columns: 1fr; }
  #saved-photo-thumbnail { max-height: 280px; }
}